12211240421244 has 48 divisors (see below), whose sum is σ = 30112012586880. Its totient is φ = 3840817896000.

The previous prime is 12211240421203. The next prime is 12211240421279. The reversal of 12211240421244 is 44212404211221.

It is a super-2 number, since 2×12211240421244² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106632159 + ... + 106746614.

It is an arithmetic number, because the mean of its divisors is an integer number (627333595560).

Almost surely, 2^{12211240421244} is an apocalyptic number.

It is an amenable number.

12211240421244 is an abundant number, since it is smaller than the sum of its proper divisors (17900772165636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211240421244 is a wasteful number, since it uses less digits than its factorization.

12211240421244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213379050 (or 213379048 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

Adding to 12211240421244 its reverse (44212404211221), we get a palindrome (56423644632465).

The spelling of 12211240421244 in words is "twelve trillion, two hundred eleven billion, two hundred forty million, four hundred twenty-one thousand, two hundred forty-four".